Surveillance video shows the three suspected thieves work to retrieve the shark from its tank before disappearing.

The aquarium says employees who thought something was happening followed the suspects to their vehicle, but they did not allow them to search either the car or the stroller.

The snatched shark has been recovered and returned to a petting tank.

Investigators in the San Antonio suburb of Leon Valley say one person in custody was charged Monday night. Police Chief Joseph Salvaggio says two others are expected to be charged. No names have been released.